Definition of Terms

 

Following are the definitions of key terms used in this owner’s ref-

 

erence.

INPUT AND OUTPUT

Balanced

CONNECTIONS

A symmetrical input or output circuit that has equal impedance

 

from both input terminals to a common ground reference point.

 

The industry standard for professional and sound recording instal-

 

lations, balanced connections have 6 dB more gain than single-

 

ended connections, and allow the use of long interconnect cables.

 

Balanced connections are less susceptible than single-ended con-

 

nections to induced noise from the system or the environment.

 

Single-ended

 

A two-wire input or output circuit. Use care when using single-

 

ended connections as the ground connection is made last and

 

broken first. Turn the system off prior to making or breaking single-

 

ended connections. Single-ended connections are not recom-

 

mended for connections requiring long cable runs.

OPERATION

Off

 

When the AC power cord is not plugged into the wall, the front

 

panel LED is not illuminated and the component is off.

 

Stand-by Mode

 

When the AC power cord is plugged into the wall, the front panel

 

stand-by and power LED (2) illuminates red, indicating that the

 

component is in the stand-by mode. This low power consumption

 

status keeps the audio and circuits at idle. Krell recommends leav-

 

ing the component in the stand-by mode when it is not playing

 

music.

 

Operational Mode

 

From the stand-by mode, when the power button on the front

 

panel is pressed and the front panel stand-by and power LED (2)

 

illuminates blue, the component is in the operational mode and

 

ready to play music.

TECHNOLOGY

Krell Current Mode

 

A proprietary Krell circuit topology in which the audio gain stages

 

of a component operate in the current domain, rather than the

 

voltage domain. This unique technology provides the component

 

with exceptional speed and a wide bandwidth.

6

Krell S–1500 Multi-channel Amplifier

Page 5 Page 7
Page 6
Image 6
Krell Industries S1500 manual Definition of Terms, Input and Output, Connections, Operation, Technology
Page 5 Page 7

S1500 specifications

Krell Industries is renowned for its commitment to high-performance audio equipment, and the S1500 is a notable addition to their lineup of amplifiers. The Krell S1500 is a powerful, flexible, and highly efficient multi-channel amplifier designed primarily for home theater and sophisticated audio setups. With a robust power output of 150 watts per channel into 8 ohms and an impressive capability to drive even lower impedances, the S1500 ensures dynamic audio reproduction that is suitable for various applications.

One of the standout features of the S1500 is its Class A/B amplifier topology. This design combines the benefits of both Class A and Class B amplification, delivering clear and accurate sound reproduction while offering high efficiency. Krell has engineered the S1500 with sophisticated thermal management systems, ensuring that the amplifier runs cool, even during long listening sessions or demanding audio playback scenarios.

The S1500 employs advanced circuit topologies that minimize distortion and enhance signal integrity. This results in pristine audio quality, capable of handling the delicacy of classical pieces as well as the demands of high-action films. Krell’s proprietary technologies, such as the Krell Current Mode, maximize the amplifier's performance by ensuring that it can respond instantaneously to changes in the audio signal, which is crucial for dynamic sound reproduction.

Connectivity on the S1500 is generous, featuring balanced and unbalanced inputs to cater to a variety of audio sources. This flexibility allows the amplifier to integrate seamlessly into any high-end audio or home theater system. Additionally, the amplifier includes extensive protection circuitry to safeguard against short circuits, overheating, and overload conditions, contributing to its durability and reliability.

The design aesthetic of the S1500 reflects Krell's commitment to both form and function, with a sleek, modern chassis that complements any audio setup. The amplifier also features a user-friendly front panel that provides access to status indicators and controls, making it easy for users to operate.

In summary, the Krell Industries S1500 is a meticulously designed multi-channel amplifier that combines advanced technologies with robust power output, ensuring an unparalleled listening experience. Its exceptional audio fidelity, smart thermal management, and extensive connectivity options make it a top choice for audiophiles and home theater enthusiasts alike. Whether for music or movies, the S1500 stands as a testament to Krell’s legacy of excellence in audio engineering.
Top Page Image Contents